[Lab] Looking for ideas
Paul & Andrea Mumby
themumbys at gmail.com
Thu Mar 24 12:16:45 EDT 2011
you could tie it into a dollar store stove timer circuit.
solder a small transistor in place of the switch (or in parallel to the
switch), and have the base leg left open to tie to the output for the
buzzer/piezo on the timer. then set the timer to go off in 5 minutes or
whatever and hide the whole device... makes it a bit more bulky but it's a
dirt simple solution. (and those stove timers are fairly small already,
strip the chassis off one and it should be no larger than the annoy-o-tron
the downside to this method is you will want to tie the grounds together on
the 2 devices, or run them from a common power supply, so your battery life
will suffer a bit because it's powering both the timer and the annoy-o-tron)
On Thu, Mar 24, 2011 at 12:00 PM, Jean-Marc LeBlanc <
jeanmarc.leblanc at gmail.com> wrote:
> does this thing have a button to start or just an on off swich?
> Jean-Marc Le Blanc
> "Do you pine for the nice days of Minix-1.1, when men were men and
> wrote their own device drivers?" Linus Torvalds
> On Thu, Mar 24, 2011 at 11:52 AM, Stacey Mulcahy
> <stacey.mulcahy at gmail.com> wrote:
> > Hi everyone
> > I have what may be a simple question for some people, but I really don't
> > know where to start. I am going to do a practical joke on someone - i
> > purchased one of these
> > http://www.thinkgeek.com/gadgets/electronic/8c52/
> > what i want to do, is somehow hook it up to start the sound at some point
> > time in the future - as simply as possible. So to be able to say " turn
> > on in two hours".
> > If anyone has some ideas or can point me in the right direction, i'd
> > appreciate it.
> > thanks in advance as always!
> > Stacey
> > _______________________________________________
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